Apparatus for cracking oil



A wm.

l, 1920 2 Sheets-Sheet 1.

lll ll IIIIIHH Il M l NN Il IH G. EGLOFF ET AL APPARATUS FOR CRACKING OIL Original Filed Sept.

March 8 1927.

March 8 1927.

original Filed sepi. 1. 1920 2 Sheets-Sheet 2 .--.l d :l ll :l :l -2---- l- .--I I- l-- :l i-- ---l -----ll NN llll ll'llll ll llgl ll Il Patented Mar. 8, 1927.

UNITED STATES PATENT OFFICE.

' GUSTAV EGI'OFF AND VHARRY P. BENNER, 0F CHICAGO. ILLINOIS, .'ASSIGNORS T0 UNI- VERSAL OIL PRODUCTS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION v0]? SOUTH DAKOTA.

APPARATUS FOR CRACKING OIL.

Application led September 1, 1920, Serial No. 407,402. Renewed September 2, 1926.

This invention relates to improvements in apparatus .for crackingyoil such as petroleum oil to produce further light hydrocarbons such as gasoline, kerosene or the like.

In the drawings, Fig. l is a View partly in `side elevation and partly in vertical section of our improved apparatus. Fig. `2 is a view on an enlarged scale of the rotating'still members.

Referring to the drawings, l' designates the furnace, provided with burner 2, grate 3, bridge wall 4, combustion chamber 5, stack 6. In the furnace is rotatably supported a pair of still membersv7 and 8. .These still members are suitably mounted on trunnions (not shown) and are rotated as follows: At either end the shells 7 and 8 are provided with circumferentially extending gears 9,

I which mesh with the intermediate gears 10,

the arrangement being such that the shells are rotated in the same direction relative to each other. The lower shell 7 is providedl with a drive shaft 11 and driving pulley 12 connected to any suitable source of driving power. One end of each still is rovided witli the man hole plate 13 and t e other end is open and connects with the stationary still sections 14. The sections 7 and 8 are 3o rotatably connected to the stationary section 14 by means of the oundj'oint 1h5, the arrangement being suc i that the main art of the stills rotate while the short sectlons 14 are stationary. Oil is delivered to the lower stationary. Section 14 through thecharging line 15", connected to feed pump 16 in which is interposed valve 17. Any liquid residue may be drawn olf from either of the stationary' sections 14 through the draw off 4o pipes 18 controlled by the valves 19. The vapors pass 1out of'the lower shell or still member 7 by means of the vapor pipe 20 supported in the lower stationary member 14 and extendin into but .out of contact with the rpxtary s ell 7 and terminating in abellmout 21.` The pipe 20 leads to the connection 22 extending 1nto the upper stationary member 14 as shown more clearly in Fig. 2. The ipe 22 in turn connects to 5o pipe- 23, whiclii extends longitudinally through the upper shell or vapor chamber 8 and opens into the latter at the oppositel end as shown at 24. Vapors pass out of the upper stationary -section 14 through the vapor pipe 25 in which is interposed a throttle valve 26. The pipe 25 extends into the lower part of the dephlegmator 27 and is provided with a space cap member 28 which permits of the vapors passing out of the pipe 25, but prevents the reflux condensate from falling back into the pipe. The reflux condensate is returned to the still 7`by means of a reflux condensate pipe 29, provided with throttle valve 30. The dephlegmator 27 is provided with the alternately disposed baffles 3l and vapor outlet pipe 32, controlled by valve 33. The pipe 32 leads to water condenser 34 seated in condenser box 35 and `is connected by pipe36 to receiver 37. The

receiver 37 is provided with liquid draw off pipe 38, controlled by throttle valve 39, gas outlet pipe 40, controlled by valve 41, pres-A sure gauge 42 and liquid level gauge 43. A throttle valve '44 may be interposed in the pipe 36 if desired.

The operation of the apparatus will be apparent from the foregoing description, and therefore need not be described. It is to be noted, however, that a novel feature of the construction is that we not only have adouble still comprising a pair of superim-y posed shells, both. of which rotate, but that if desired the apparatus may be so operated that the lower shell member forms a still and the upper vapor chamber.

We claim as our invention:

1. In an apparatus for treating oil, the combination wit-h a shell forming a still member of means for feeding oil to said still, of a second shell forming a vapor chamber,

.forming a sti l means for delivering oil to said shell members, of a second shell member comprised of a stationary section and a rotary section forming al vapor chamber, connections between the still and vapor means for delivering vapors from said first y chamber for delivering vapors from one to i the other, means for discharging vapors from the rotary section lconstituting the vapor chamber, and means for rotating said rotary members.

3. An apparatus for treating oil,vcompris ing a shell forming a still member, means for introducing oil thereto. a second shell forming a vapor receiving member adjacent said vfirst mentioned member, means for establishing communication between said members whereby vapors from said iirst mentioned member are Vintroduced to the second member for expansion, and means for rotating both of said shell members, a vapor out let from said vapor receiving member, a reiiux condenser in communication therewith, and meansfor returning reflux condensate to the rotating still member.

4, An ap aratus for treating oil, comprising alrotat-mg still member having a nonrotating section, means for delivering oil to said still member, means for heating the still member, a rotating vapor chamber having a non-rotating supporting sect-ion, a communication between .the still member and the vapor chamber, said coimnunication comprising a transfer'line leading from the still member through the non-rotating portion thereof and entering the non-rotating portion of said vapor chamber, means for simultaneously rotating the vapor chamber and still member, a dephlegmator, means for discharging vapors from the vapor chamber to the dephlegmator, and means for returning reflux condensate from the dephlegmator to the still member.

5. In an apparatus 'for treating oil, the combination with a rotating still member non-rotating part thereof, a vapor discharge from said still leading outwardly therefrom through the non-rotating part and entering said vapor chamber through an opening in the stationary part thereot` for transferring` the vapors from the still to the vapor chamber, and means for discharging `vapors from the stationary part of the vapor chamber.

6. In an apparatus for treating oil, the combination with a rotating still member having a non-rotating part, a vapor chamber having a main rotating part and a nonrotatin part connected therewith, means connecting said still and said vapor chamber whereby they rotate in unison, an oil inlet to said still member, a vapor discharge from said still member leading outwardly therefrom through the non-rotating part and entering said vapor chamber through an opening in the stationary part thereof for transferring the vapors from the still to the vapor chamber, means for discharging vapors from the stationary part of the vapor chamber and residue discharge members communicating with the stationary portions of both the still and vapor chamber.

GUTAV EGLOFF. 

